South section of mangdang road. According to information from official website of yongcheng city Education Bureau, yongcheng city went to the talent exchange center in the south section of Mangdang Road, Dongcheng District, yongcheng city to take the exam. "Three Supports and One Support" is a plan promoted by the China Municipal Government to support rural development. It aims to attract college students to engage in supporting agriculture, teaching, supporting doctors and helping the poor in rural areas after graduation.